Abstract
We evaluate the non trivial one loop graphs for massless particles which are relevant for the QCD description ofe + e − → three jets. Especially we present a method which allows a quick calculation of the imaginary part of box graphs.
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Fabricius, K., Schmitt, I. Calculation of dimensionally regularized box graphs in the zero mass case. Z. Phys. C - Particles and Fields 3, 51–53 (1979). https://doi.org/10.1007/BF01577398
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DOI: https://doi.org/10.1007/BF01577398